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Stock-Based Compensation | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Stock-Based Compensation | Stock-Based Compensation 2018 Equity Incentive Plan In 2018, our board of directors adopted, and our stockholders approved, the 2018 Equity Incentive Plan (the “2018 Plan”). The purposes of the 2018 Plan are to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentives to employees, directors and consultants who perform services for the Company, and to promote the success of our business. These incentives are provided through the grant of stock options, stock appreciation rights, restricted stock, restricted stock units, performance units and performance shares. Upon vesting of restricted stock units, shares will be delivered electronically to the holder shortly after vest date. Upon exercise of stock options, shares will be delivered electronically to the holder pursuant to an effective registration statement. The number of shares of common stock available for issuance under the 2018 Plan will also include an annual increase on the first day of each fiscal year, equal to the lesser of: (i) 2,729,416 shares of common stock; (ii) 5% of the outstanding shares of common stock on the last day of the immediately preceding fiscal year; or (iii) such other amount as our board of directors may determine. In addition, the shares of common stock reserved for issuance under the 2018 Plan also will include any shares of common stock subject to stock options, restricted stock units or similar awards granted under the 2009 Equity Incentive Plan (the “2009 Plan”), that, on or after the adoption of the 2018 Plan, expire or otherwise terminate without having been exercised in full and shares of common stock issued pursuant to awards granted under the 2009 Plan that are forfeited to or repurchased by us. As of December 31, 2021, the maximum number of shares of common stock that may be added to the 2018 Plan pursuant to the foregoing is 925,467. Not including the maximum number of shares from the 2009 Plan that may be added to the 2018 Plan, the 2018 Plan had 762,038 and 2,551,720 shares of common stock reserved for future issuances as of December 31, 2021 and December 31, 2020, respectively. Restricted Stock Units A summary of our restricted stock unit activity is set forth below:
| Shares |  | Weighted Average Grant Date Fair Value
Outstanding as of December 31, 2020 | 1,677,060 |  |  | $ | 1.41 |
Granted | 4,884,848 |  |  | 1.90 |
Released | (2,593,237) |  |  | 1.57 |
Forfeited | (392,401) |  |  | 1.66 |
Outstanding as of December 31, 2021 | 3,576,270 |  |  | $ | 1.94 |
During the first quarter of 2020, we granted 123,084 restricted stock units to non-employee directors, each with a grant date fair value of $1.25 per share in lieu of cash compensation board fees for services provided. The awards vested immediately. We also granted 125,523 restricted stock units to non-employee directors, with a grant date fair value of $1.25 per share. The awards vest in four equal installments on March 26, 2020, June 26, 2020, September 18, 2020, and December 25, 2020, respectively, and are subject to service conditions. We also granted 746,000 restricted stock unit awards to team members with an average grant date fair value of $1.25 per share. The awards granted to team members vest over an average of 42 months with various installment and vesting dates, and are subject to service conditions. We also granted 630,000 restricted stock units to a non-employee service provider that were for the satisfaction of legal fees owed and other consulting fees. The awards granted to the legal service provider vested immediately and had an average grant date fair value $0.88. During the second quarter of 2020, we granted 85,996 restricted stock units to non-employee directors, each with a grant date fair value of $0.71 per share in lieu of cash compensation board fees for services provided. The awards vested immediately. We also granted 375,000 restricted stock unit awards to team members with an average grant date fair value of $0.67 per share. The awards granted to team members vest over 4 years with 25% vesting May 18, 2021, then equal quarterly installments thereafter until the final vesting period of May 18, 2024 and are subject to service conditions. We also granted 250,000 restricted stock units to a non-employee service provider that were for the satisfaction of legal fees owed. The awards granted to the legal service provider vested immediately and had an average grant date fair value $0.67. During the third quarter of 2020, we granted 39,426 restricted stock units to non-employee directors, each with a grant date fair value of $1.28 per share in lieu of cash compensation board fees for services provided. The awards vested immediately. We also granted 12,000 restricted stock unit awards to team members with an average grant date fair value of $1.68 per share. The awards granted to team members vest over 4 years with 25% vesting May 18, 2021, then equal quarterly installments thereafter until the final vesting period of May 18, 2024 and are subject to service conditions. We also granted 155,000 restricted stock units to non-employee service providers that were for the satisfaction of legal and professional fees. The awards granted to the service providers have various vesting dates and had an average grant date fair value $1.52. During the fourth quarter of 2020, we granted 30,000 restricted stock units to team members and 50,000 restricted stock units to non-employees directors with an average grant date fair value of $0.85 per share. The awards granted to team members vest over 4 years with 25% vesting November 18, 2021, then equal quarterly installments thereafter until the final vesting period of November 18, 2024 and are subject to service conditions. The restricted stock units granted to the non-employee service provider were for satisfaction of legal fees owed. The awards granted to the legal service provider vested immediately. During the first quarter of 2021, we granted 3,488,262 restricted stock unit awards to team members with an average grant date fair value of $2.03 per share. The awards granted to team members vest over a range of 10 to 51 months with various installment and vesting dates, and are subject to service conditions. We also granted 652,170 restricted stock units to non-employee directors, each with a grant date fair value of $1.22. The awards vest in four equal installments on March 4, 2021, June 4, 2021, September 4, 2021, and December 4, 2021, respectively, and are subject to service conditions. We also granted 97,744 restricted stock units to non-employee directors, with a grant date fair value of $1.22 per share in lieu of cash compensation board fees for services provided. These awards vested immediately. During the second quarter of 2021, we granted 54,000 restricted stock unit awards to team members with an average grant date fair value of $1.23 per share. The awards granted to team members vest over a range of 47 months with various installment and vesting dates, and are subject to service conditions. During the third quarter of 2021, we granted 54,000 restricted stock unit awards to team members with an average grant date fair value of $1.09 per share. The awards granted to team members vest over a range of 47 months with various installment and vesting dates, and are subject to service conditions. During the fourth quarter of 2021, we granted 170,000 restricted stock unit awards to team members with an average grant date fair value of $3.97 per share. The awards granted to team members vest over a range of 47 months with various installment and vesting dates, and are subject to service conditions. We also granted 368,672 restricted stock units to non-employee directors, each with a grant date fair value of $1.35. The awards vest in four equal installments throughout 2022 and are subject to service conditions. The restricted stock unit grants were valued based on the fair value of our common stock on the date of grant. Stock Options During third quarter of 2021, we granted 50,000 stock options to a non-employee consultant at an exercise price of $1.08 per share. The stock options vest over one year in twelve equal monthly installments. As of December 31, 2021, this is the only stock option grant outstanding under the 2018 Plan. 2018 Employee Stock Purchase Plan Also, in 2018, our board of directors adopted, and our stockholders approved, the 2018 Employee Stock Purchase Plan (the “2018 ESPP”). The total shares of common stock initially reserved under the 2018 ESPP was limited to 272,942 shares. The purpose of the 2018 ESPP is to provide eligible employees with an opportunity to purchase shares of our common stock at a discount through accumulated contributions generally in the form of payroll deductions of up to 15% of eligible compensation, subject to caps of $25 in any calendar year and 4,000 shares on any purchase date. The 2018 ESPP provides for 24-month offering periods, generally beginning in June and December of each year, and each offering period consists of four six-month purchase periods. The initial offering period began on June 1, 2021 and will end in May 2023. The first purchase under the 2018 ESPP was in December 2021. Participation ends automatically upon termination of employment with the Company. On each purchase date, participating employees will purchase shares of our common stock at price per share equal to 85% of the lesser of the fair market value of our common stock on (i) the first trading day of the applicable offering period and (ii) the last trading day of each purchase period in the applicable offering period. If the price per share of our common stock on any purchase date in the offering period is lower than the stock price on the enrollment date of that offering period, the offering period will immediately reset after the purchase of shares on such purchase date and automatically roll into a new offering period. Purchased shares will be delivered electronically to the participant shortly after the purchase date pursuant to an effective registration statement. We use a Black-Scholes option pricing model to determine the fair value of shares to be purchased under the 2018 ESPP. Stock-based compensation expense related to our 2018 ESPP for the year ended December 31, 2021 was not significant. The number of shares of common stock that may be made available for sale under the 2018 ESPP also includes an annual increase on the first day of each fiscal year beginning for the fiscal year following the fiscal year in which the first enrollment date (if any) occurs equal to the lesser of (i) 818,825 shares of common stock; (ii) 1.5% of the outstanding shares of common stock on the last day of the immediately preceding fiscal year; or such other amount as the administrator may determine. The 2018 ESPP had 189,215 and 272,942 shares of common stock available for sale and reserved for issuance as of December 31, 2021 and 2020, respectively. 2009 Equity Incentive Plan In 2009, we adopted the 2009 Plan, which allowed for the granting of incentive and non-statutory stock options, as defined by the Internal Revenue Code, to employees, directors and consultants. The exercise price of the options granted was generally equal to the value of our common stock on the date of grant, as determined by our board of directors. The awards are exercisable and vest, generally over four years, in accordance with each option agreement. The term of each option is no more than ten years from the date of the grant. The 2009 Plan allows for options to be immediately exercisable, subject to the Company’s right of repurchase for unvested shares at the original exercise price. The total amount received in exchange for these shares has been included in accrued expenses on the accompanying consolidated balance sheets and is reclassified to equity as the shares vest. As of December 31, 2020, there were 574 unvested shares outstanding amounting to $1 in accrued expenses. There were no unvested shares outstanding as of December 31, 2021. Upon exercise, shares will be delivered electronically to the holder pursuant to an effective registration statement. Effective with the adoption of the 2018 Plan, no additional grants will be made under the 2009 Plan. A summary of our stock option activity under the 2009 Plan and related information is set forth below:
| Number of Shares |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value
Outstanding as of December 31, 2019 | 1,465,450 |  |  | $ | 0.80 |  |  | 6.86 |  | $ | 771 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (185,234) |  |  | 1.06 |  |  |  |  |
Cancelled/Expired | (71,476) |  |  | 1.77 |  |  |  |  |
Outstanding as of December 31, 2020 | 1,208,740 |  |  | $ | 0.80 |  |  | 6.19 |  | $ | 700 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (260,451) |  |  | 0.69 |  |  |  |  |
Cancelled/Expired | (22,822) |  |  | 2.01 |  |  |  |  |
Outstanding as of December 31, 2021 | 925,467 |  |  | $ | 0.80 |  |  | 5.59 |  | $ | 1,692 |
Exercisable as of December 31, 2021 | 904,259 |  |  | $ | 0.79 |  |  | 5.58 |  | $ | 1,668 |
The Company did not grant any options under the 2009 Plan during the year ended December 31, 2021 or 2020. We have historically used the Black-Scholes option pricing model to estimate the fair value of our stock option awards. The aggregate intrinsic value is based on our stock price trading price on the Nasdaq Capital Market. The aggregate intrinsic value of options exercised was $1,168 and $88 for the years ended December 31, 2021 and 2020, respectively, and is calculated based on the difference between the estimated fair value of our common stock at the date of exercise and the exercise price. The total fair value for options vested during the years ended December 31, 2021 and 2020, was $66 and $130, respectively. Stock-Based Compensation Compensation cost that has been included in our consolidated statements of operations and comprehensive loss for all stock-based compensation arrangements is set forth below:
| Year Ended December 31,
Stock-based compensation | 2021 |  | 2020
Cost of revenues | $ | 1,050 |  |  | $ | 274 |
Sales and marketing | 437 |  |  | 64 |
General and administrative | 2,770 |  |  | 4,083 |
Research and development | 684 |  |  | 71 |
Total stock-based compensation | $ | 4,941 |  |  | $ | 4,492 |
As of December 31, 2021, there was approximately $5,943, $328 and $14 of total unrecognized compensation cost related to the 2018 Plan, the 2018 ESPP and the 2009 Plan, respectively. These unrecognized compensation costs are expected to be recognized over an estimated weighted-average period of approximately 2.7 years, 1.5 years and 0.3 years for the 2018 Plan, the 2018 ESPP and the 2009 Plan, respectively.

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